ska phase 1 system requirements specification - The Square ...

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WP2‐005.030.000‐SRS‐002Revision : BIdent Requirement Applicability Parent VerificationSYS_REQ_3820Repair period. The maximumperiod of repair once a failure ofSKA1 has been established, shallbe 1 (TBC) week. Here, a failure isdefined as not being able to meetthe scientific specifications due to(sub)system failure(s).TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3830Non‐availability information. Allusers with scheduledmeasurements during the failureperiod shall be informed of thenon‐availability of the systemTBDIdent Requirement Applicability Parent VerificationSYS_REQ_3840Data loss due to power outage.All subsystems shall not lose morethan 4 hours of acquired orprocessed measurement data(not yet permanently stored) as aresult of an outage in the externalpower supply.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3850Autonomous restart after poweroutage. All subsystems shall havethe capability to restartautonomously and withoutfailures, after an outage inexternal power supply.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3860System availability after restart.All subsystems shall be availablewithin 5 minutes (TBC) afterrestart. (Note – there may besubsystems such as cryo coolersthat will probably not comply tothe requirement and will need tobe handled differently).TBD2011‐02‐14 Page 36 of 58
WP2‐005.030.000‐SRS‐002Revision : BIdent Requirement Applicability Parent VerificationSYS_REQ_3870Software/firmware reinstallation.Allsoftware/firmware in SKA1 shallallow its re‐installation.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3880Software/firmware upgrades. Itshall be possible to replace allsoftware/firmware configurationitems in SKA1 through softwareupgrades,initiated by anengineer.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3890Software code identification.Software configuration items shallprovide unambiguous inputs toallow the maintenance of aconfiguration managementdatabase.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3910Software code identificationresponse time. The softwareidentification shall be available tothe operator within 10 seconds(TBC) after the request was made.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_3920Subsystem maintenancefunctions. All subsystems shallinclude functions that allowmaintenance of hardware andsoftware.TBD2011‐02‐14 Page 37 of 58
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Page 3 and 4: WP2‐005.030.000‐SRS‐002Revisi
Page 15 and 16: 3.3.5 Spectral ResolutionWP2‐005.
Page 25 and 26: 3.10.3 Monitoring requirementsWP2
Page 35: WP2‐005.030.000‐SRS‐002Revisi
Page 57 and 58: 9 Quality Assurance ProvisionsWP2

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